html, body { height: 100%; padding: 0; margin: 0; }
div { width: 50%; height: 50%; float: left; text-align:center; padding-top:20px; }
#div1 { background: #fff; min-height:400px; }
#div2 { background: #000;min-height:400px; }
#div3 { background: #DDD;min-height:400px; }
#div4 { background: #0b0d0f;min-height:400px; }
a{text-decoration:none;   color: #28313f;}
#div4 a .landing_label, #div2 a .landing_label{color:#fff;}
img{max-width:450px; height:auto;}
a .landing_label {
    width: 100%;
    font-family: 'Montserrat';
    font-size: 30px;
    line-height: 35px;
    text-align: center;
    display: block;
       color: #28313f;
	   text-decoration:none;
    font-weight: 300;
	margin-bottom:20px;
}
@media (max-width: 991px)
{
	img{max-width:100%; height:auto;}
div { width: 100%; height: auto; float: left; text-align:center; padding-top:20px; }
}